梅塞尔中国工程规范 Project Code of Messer China 铝合金及管道焊接工艺要求 THE STANDARD OF WELDING PROCEDURE OF ALUMINIUM ALLOY AND PIPELINES 编制: 于文盛 日期 ： Made by Wensheng Yu Date 校对 ： 日期 ： Checked by Date 批准 ： 日期 ： Approved by Zhanglong Dai Date Code of Practice 编号( No. ) ：COP-0405 版本 ( Version ) ：A Project Code of Messer China COP –0405 A Page 2 of 7 COP 0405 A Permit to Work 03/30/13 1 目的 Pu rpose 规范冷箱内铝合金及管道焊接（TIG）工艺操作技术要求及焊接作业指导书的规定。 To standardize the on-site manual of Aluminium Alloy and pipeline in Cool Box. 2 焊前准备 Welding Preparation: 2.1 焊件坡口形式和尺寸应符合设计和焊接作业指导书的规定,坡口加工表面应进行清理,并达到平整光滑,无毛刺和飞边、垫板及焊丝进行清理。 The shape and the size of the groove of the welding pieces shall be followed the designed rules and welding operative manual. The surface of the groove process shall be cleaned, level without burrs and overlaps, the washer and wires shall also be cleaned. 2.2 焊件组对中，焊接定位焊缝时，应采用与正式焊接相同的焊丝和焊接工艺并应由合格焊工施焊，定位焊缝的长度，间距和高度宜符合焊接作业指导书，正式焊接前应对定位焊缝进行检查，当发现缺陷时，应及时处理。 The selection of the wires and welding procedure shall be the same as the welding operated by qualified welders in the process of tack welding for fitting up the welding pieces.The length, space and height of the tack welding seam shall follow the welding manual, The tacking welding seam shall be inspected and the defects shall be dealt with prior to the welding. 2.3 当焊缝背面需加垫板时，垫板材质应符合设计规定或与母材相同，开有容纳焊缝根部的沟槽。 When the back of the welding seam needs to plus washer, the materials of the washer with slots opened in the root of t...
